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Marques JF, Ali H, Varbanov BM, Finkel M, Veen HM, van der Meer SLM, Valles-Sanclemente S, Muthusubramanian N, Beekman M, Haider N, Terhal BM, DiCarlo L. All-Microwave Leakage Reduction Units for Quantum Error Correction with Superconducting Transmon Qubits. Phys Rev Lett 2023; 130:250602. [PMID: 37418741 DOI: 10.1103/physrevlett.130.250602] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Accepted: 05/24/2023] [Indexed: 07/09/2023]
Abstract
Minimizing leakage from computational states is a challenge when using many-level systems like superconducting quantum circuits as qubits. We realize and extend the quantum-hardware-efficient, all-microwave leakage reduction unit (LRU) for transmons in a circuit QED architecture proposed by Battistel et al. This LRU effectively reduces leakage in the second- and third-excited transmon states with up to 99% efficacy in 220 ns, with minimum impact on the qubit subspace. As a first application in the context of quantum error correction, we show how multiple simultaneous LRUs can reduce the error detection rate and suppress leakage buildup within 1% in data and ancilla qubits over 50 cycles of a weight-2 stabilizer measurement.
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Affiliation(s)
- J F Marques
- QuTech, Delft University of Technology, P.O. Box 5046, 2600 GA Delft, Netherlands
- Kavli Institute of Nanoscience, Delft University of Technology, P.O. Box 5046, 2600 GA Delft, Netherlands
| | - H Ali
- QuTech, Delft University of Technology, P.O. Box 5046, 2600 GA Delft, Netherlands
- Kavli Institute of Nanoscience, Delft University of Technology, P.O. Box 5046, 2600 GA Delft, Netherlands
| | - B M Varbanov
- QuTech, Delft University of Technology, P.O. Box 5046, 2600 GA Delft, Netherlands
| | - M Finkel
- QuTech, Delft University of Technology, P.O. Box 5046, 2600 GA Delft, Netherlands
- Kavli Institute of Nanoscience, Delft University of Technology, P.O. Box 5046, 2600 GA Delft, Netherlands
| | - H M Veen
- QuTech, Delft University of Technology, P.O. Box 5046, 2600 GA Delft, Netherlands
- Kavli Institute of Nanoscience, Delft University of Technology, P.O. Box 5046, 2600 GA Delft, Netherlands
| | - S L M van der Meer
- QuTech, Delft University of Technology, P.O. Box 5046, 2600 GA Delft, Netherlands
- Kavli Institute of Nanoscience, Delft University of Technology, P.O. Box 5046, 2600 GA Delft, Netherlands
| | - S Valles-Sanclemente
- QuTech, Delft University of Technology, P.O. Box 5046, 2600 GA Delft, Netherlands
- Kavli Institute of Nanoscience, Delft University of Technology, P.O. Box 5046, 2600 GA Delft, Netherlands
| | - N Muthusubramanian
- QuTech, Delft University of Technology, P.O. Box 5046, 2600 GA Delft, Netherlands
- Kavli Institute of Nanoscience, Delft University of Technology, P.O. Box 5046, 2600 GA Delft, Netherlands
| | - M Beekman
- QuTech, Delft University of Technology, P.O. Box 5046, 2600 GA Delft, Netherlands
- Netherlands Organisation for Applied Scientific Research (TNO), P.O. Box 96864, 2509 JG The Hague, Netherlands
| | - N Haider
- QuTech, Delft University of Technology, P.O. Box 5046, 2600 GA Delft, Netherlands
- Netherlands Organisation for Applied Scientific Research (TNO), P.O. Box 96864, 2509 JG The Hague, Netherlands
| | - B M Terhal
- QuTech, Delft University of Technology, P.O. Box 5046, 2600 GA Delft, Netherlands
- EEMCS Department, Delft University of Technology, P.O. Box 5046, 2600 GA Delft, Netherlands
| | - L DiCarlo
- QuTech, Delft University of Technology, P.O. Box 5046, 2600 GA Delft, Netherlands
- Kavli Institute of Nanoscience, Delft University of Technology, P.O. Box 5046, 2600 GA Delft, Netherlands
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2
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Lu W, Lin Y, Haider N, Moly P, Wang L, Zhou W. Ginsenoside Rb1 protects human vascular smooth muscle cells against resistin-induced oxidative stress and dysfunction. Front Cardiovasc Med 2023; 10:1164547. [PMID: 37304947 PMCID: PMC10248054 DOI: 10.3389/fcvm.2023.1164547] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Accepted: 05/05/2023] [Indexed: 06/13/2023] Open
Abstract
Resistin has been shown to play a key role in inducing vascular smooth muscle cells (VSMCs) malfunction in the atherosclerosis progression. Ginsenoside Rb1 is the main component of ginseng, which has been used for thousands of years and has been reported to have a powerful vascular protective effect. The aim of this study was to explore the protective effect of Rb1 on VSMCs dysfunction induced by resistin. In the presence or absence of Rb1, human coronary artery smooth muscle cells (HCASMC) were treated at different time points with or without 40 ng/ml resistin and acetylated low-density lipoprotein (acetylated LDL). Cell migration and proliferation were analyzed using wound healing test and CellTiter Aqueous Cell Proliferation Assay (MTS) test, respectively. Intracellular reactive oxygen species (ROS) (H2DCFDA as a dye probe) and superoxide dismutase (SOD) activities were measured by a microplate reader and the differences between groups were compared. Rb1 significantly reduced resistin-induced HCASMC proliferation. Resistin increased HCASMC migration time-dependently. At 20 µM, Rb1 could significantly reduce HCASMC migration. Resistin and Act-LDL increased ROS production to a similar level in HCASMCs, while Rb1 pretreated group reversed the effects of resistin and acetyl-LDL. Besides, the mitochondrial SOD activity was significantly reduced by resistin but was restored when pretreated with Rb1. We confirmed the protection of Rb1 on HCASMC and suggested that the mechanisms involved might be related to the reduction of ROS generation and increased activity of SOD. Our study clarified the potential clinical applications of Rb1 in the control of resistin-related vascular injury and in the treatment of cardiovascular disease.
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Affiliation(s)
- Weifeng Lu
- Department of Vascular Surgery, Zhongshan Hospital (Xiamen), Fudan University, Xiamen, China
| | - Yue Lin
- Department of Vascular Surgery, Zhongshan Hospital (Xiamen), Fudan University, Xiamen, China
| | - Nezam Haider
- Division of Vascular Surgery, Department of Surgery, University of Arizona, Tucson, AZ, United States
| | - Pricila Moly
- Division of Vascular Surgery, Department of Surgery, University of Arizona, Tucson, AZ, United States
| | - Lixin Wang
- Department of Vascular Surgery, Zhongshan Hospital (Xiamen), Fudan University, Xiamen, China
- Department of Vascular Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Wei Zhou
- Division of Vascular Surgery, Department of Surgery, University of Arizona, Tucson, AZ, United States
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3
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Petersen E, Zumla A, Hui DS, Blumberg L, Valdoleiros SR, Amao L, Ntoumi F, Asogun D, Simonsen L, Haider N, Traore T, Kapata N, Dar O, Nachega J, Abbara A, Al Balushi A, Kock R, Maeurer M, Lee SS, Lucey DR, Ippolito G, Koopmans M. Vaccination for monkeypox prevention in persons with high-risk sexual behaviours to control on-going outbreak of monkeypox virus clade 3. Int J Infect Dis 2022; 122:569-571. [PMID: 35788415 PMCID: PMC9534076 DOI: 10.1016/j.ijid.2022.06.047] [Citation(s) in RCA: 43] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Accepted: 06/27/2022] [Indexed: 01/25/2023] Open
Affiliation(s)
- E Petersen
- Institute for Clinical Medicine, Faculty of Health Sciences, University of Aarhus, Denmark; European Society for Clinical Microbiology and Infectious Diseases [ESCMID] Task Force for Emerging Infections, Basel, Switzerland.
| | - A Zumla
- Centre for Clinical Microbiology, Division of Infection and Immunity, University College London; NIHR Biomedical Research Centre, UCL Hospitals NHS Foundation Trust, London, United Kingdom
| | - D S Hui
- Department of Medicine & Therapeutics, Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, New Territories, Hong Kong, China
| | - L Blumberg
- Division of Public Health Surveillance and Response, National Institute for Communicable Diseases, Johannesburg, South Africa; Faculty of Veterinary Science, University of Pretoria, South Africa
| | - S R Valdoleiros
- European Society for Clinical Microbiology and Infectious Diseases [ESCMID] Task Force for Emerging Infections, Basel, Switzerland; Infectious Diseases Department, Centro Hospitalar Universitário de São João, Porto, Portugal
| | - L Amao
- Nigeria Centre for Disease Control, Abuja, Nigeria
| | - F Ntoumi
- Congolese Foundation for Medical Research, Brazzaville, Republic of Congo; Institute of Tropical Medicine, University of Tübingen, Germany
| | - D Asogun
- Irrua Specialized Teaching Hospital, Irrua, Nigeria
| | - L Simonsen
- PandemiX Center, Department of Science and Environment, Roskilde University, Denmark
| | - N Haider
- The Royal Veterinary College, University of London, Hatfield, Hertfordshire, United Kingdom
| | - T Traore
- Emergency Preparedness and Response Programme, WHO Regional Office for Africa, Dakar Hub, Dakar, Senegal
| | - N Kapata
- National Public Health Institute, Ministry of Health, Lusaka, Zambia
| | - O Dar
- Chatham House and UK Public health security agency, London, UK
| | - J Nachega
- Department of Medicine and Center for Infectious Diseases, Stellenbosch University, Cape Town, South Africa; University of Pittsburgh Graduate School of Public Health, Pittsburgh, USA; Departments of Epidemiology and International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, USA
| | - A Abbara
- UK Syria Public Health Network, and Department of Infection, Faculty of Medicine, Imperial College, London, UK
| | - A Al Balushi
- Infectious Diseases Unit, Department of Medicine, Sultan Qaboos University Hospital, Muscat, Oman
| | - R Kock
- The Royal Veterinary College, University of London, Hatfield, Hertfordshire, UK
| | - M Maeurer
- ImmunoSurgery Unit, Champalimaud Centre for the Unknown, Lisbon, Portugal; Medizinische Klinik, Johannes Gutenberg University Mainz, Germany
| | - S S Lee
- Stanley Ho Centre for Emerging Infectious Diseases, The Chinese University of Hong Kong, 206 Postgraduate Education Centre, Prince of Wales Hospital, Hong Kong, China
| | - D R Lucey
- Daniel R. Lucey, Geisel School of Medicine at Dartmouth, Hanover, NH, USA.
| | - G Ippolito
- Guiseppe Ippolito: Ministry of Health, Rome, Italy.
| | - Mpg Koopmans
- Viroscience Department, Erasmus Medical Center, Rotterdam, Netherlands; Pandemic and Disaster Preparedness Centre, Rotterdam, Netherlands
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Moly PK, Haider N, Zayed M, Black J, Succar B, Saad E, Zhou W. Abstract P2095: Role Of Intraplaque Lipids In Atherosclerotic Plaque Vulnerability. Circ Res 2022. [DOI: 10.1161/res.131.suppl_1.p2095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background:
Hyperlipidemia plays a pivotal role in the pathogenesis of diabetes, atherosclerosis, and cardiovascular diseases. Specific lipids of atherosclerotic plaques are potentially one of the local factors which render them susceptible to rupture. Their underlying unresolved inflammation and oxidative stress contribute to the transition from stable to unstable plaques. Therefore, we aimed to identify, characterize, and compare the intraplaque lipids composition among diabetic and non-diabetic patients and to ascertain their role in inflammation, and atherosclerotic plaque destabilization and rupture.
Methods:
Approved by the IRB, University of Arizona, Tucson Lipids were analyzed by liquid chromatography-mass spectrometry (LC-MS) from 40 surgically removed endarterectomy specimens that include
Asymptomatic & Non-diabetic
(n=13),
Symptomatic & Non-diabetic
(n=17),
Asymptomatic & Diabetic
(n=5) iv.
Symptomatic & Diabetic
(n=5) patients. Seventy nine lipid species from the main lipid classes phosphatidylcholine (PC), phosphatidylserine (PS), phosphatidylethanolamine (PE), phosphatidylinositol (PI), cholesteryl ester (CE) phosphatidylglycerol (PG), sphingomyelin (SM), and ceramide (Cer) were included in this lipidomic profiling.
Results:
LC-MS data analysis identified a significant difference (p<0.05) in 2 individual lipid species – a long chain polyunsaturated PC(40:7) and SM(18:1) between diabetic and non-diabetic (Table:1). A total of 23 lipid species were significantly (p<0.05 to p<0.005) differentially present between symptomatic and asymptomatic samples. Symptomatic diabetic and nondiabetic samples showed a significant (p<0.05 to p<0.005) difference in 13 lipids belonging to PC, SM and PE. Our studies also showed a higher peroxidation of intraplaque lipid from diabetic patients compared to non-diabetics, and a significant increase in reactive oxygen species (ROS) production in human coronary artery smooth muscle cells treated with lipids from diabetic plaques.
Conclusions:
This exploratory analysis showed distinct patterns of intraplaque lipid composition. Identification of these high-risk plaque lipid biomarkers will help to delineate the cellular and molecular mechanism responsible for stable to vulnerable plaques transition.
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Negîrneac V, Ali H, Muthusubramanian N, Battistel F, Sagastizabal R, Moreira MS, Marques JF, Vlothuizen WJ, Beekman M, Zachariadis C, Haider N, Bruno A, DiCarlo L. High-Fidelity Controlled-Z Gate with Maximal Intermediate Leakage Operating at the Speed Limit in a Superconducting Quantum Processor. Phys Rev Lett 2021; 126:220502. [PMID: 34152182 DOI: 10.1103/physrevlett.126.220502] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Accepted: 04/06/2021] [Indexed: 06/13/2023]
Abstract
Simple tuneup of fast two-qubit gates is essential for the scaling of quantum processors. We introduce the sudden variant (SNZ) of the net zero scheme realizing controlled-Z (CZ) gates by flux control of transmon frequency. SNZ CZ gates realized in a multitransmon processor operate at the speed limit of transverse coupling between computational and noncomputational states by maximizing intermediate leakage. Beyond speed, the key advantage of SNZ is tuneup simplicity, owing to the regular structure of conditional phase and leakage as a function of two control parameters. SNZ is compatible with scalable schemes for quantum error correction and adaptable to generalized conditional-phase gates useful in intermediate-scale applications.
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Affiliation(s)
- V Negîrneac
- QuTech, Delft University of Technology, P.O. Box 5046, 2600 GA Delft, Netherlands
- Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisbon, Portugal
| | - H Ali
- QuTech, Delft University of Technology, P.O. Box 5046, 2600 GA Delft, Netherlands
- Kavli Institute of Nanoscience, Delft University of Technology, P.O. Box 5046, 2600 GA Delft, Netherlands
| | - N Muthusubramanian
- QuTech, Delft University of Technology, P.O. Box 5046, 2600 GA Delft, Netherlands
- Kavli Institute of Nanoscience, Delft University of Technology, P.O. Box 5046, 2600 GA Delft, Netherlands
| | - F Battistel
- QuTech, Delft University of Technology, P.O. Box 5046, 2600 GA Delft, Netherlands
| | - R Sagastizabal
- QuTech, Delft University of Technology, P.O. Box 5046, 2600 GA Delft, Netherlands
- Kavli Institute of Nanoscience, Delft University of Technology, P.O. Box 5046, 2600 GA Delft, Netherlands
| | - M S Moreira
- QuTech, Delft University of Technology, P.O. Box 5046, 2600 GA Delft, Netherlands
- Kavli Institute of Nanoscience, Delft University of Technology, P.O. Box 5046, 2600 GA Delft, Netherlands
| | - J F Marques
- QuTech, Delft University of Technology, P.O. Box 5046, 2600 GA Delft, Netherlands
- Kavli Institute of Nanoscience, Delft University of Technology, P.O. Box 5046, 2600 GA Delft, Netherlands
| | - W J Vlothuizen
- QuTech, Delft University of Technology, P.O. Box 5046, 2600 GA Delft, Netherlands
- Netherlands Organisation for Applied Scientific Research (TNO), P.O. Box 96864, 2509 JG The Hague, Netherlands
| | - M Beekman
- QuTech, Delft University of Technology, P.O. Box 5046, 2600 GA Delft, Netherlands
- Netherlands Organisation for Applied Scientific Research (TNO), P.O. Box 96864, 2509 JG The Hague, Netherlands
| | - C Zachariadis
- QuTech, Delft University of Technology, P.O. Box 5046, 2600 GA Delft, Netherlands
- Kavli Institute of Nanoscience, Delft University of Technology, P.O. Box 5046, 2600 GA Delft, Netherlands
| | - N Haider
- QuTech, Delft University of Technology, P.O. Box 5046, 2600 GA Delft, Netherlands
- Netherlands Organisation for Applied Scientific Research (TNO), P.O. Box 96864, 2509 JG The Hague, Netherlands
| | - A Bruno
- QuTech, Delft University of Technology, P.O. Box 5046, 2600 GA Delft, Netherlands
- Kavli Institute of Nanoscience, Delft University of Technology, P.O. Box 5046, 2600 GA Delft, Netherlands
| | - L DiCarlo
- QuTech, Delft University of Technology, P.O. Box 5046, 2600 GA Delft, Netherlands
- Kavli Institute of Nanoscience, Delft University of Technology, P.O. Box 5046, 2600 GA Delft, Netherlands
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Haider N, Yang J, Kath A, Pires P, Zhou W. Humanized Resistin Transgenic Mouse: A Model of Atherogenesis. JVS Vasc Sci 2021. [DOI: 10.1016/j.jvssci.2021.09.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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7
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Islam A, Hossain M, Rostal M, Ferdous J, Miah M, Mukharjee S, Haider N, Hasan M, Rahman M, Daszak P, Rahman M, Epstein J. Epidemiology and molecular characterization of rotavirus A in bats and rhesus macaques at human-wildlife interfaces in Bangladesh. Int J Infect Dis 2020. [DOI: 10.1016/j.ijid.2020.09.1377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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8
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Hossain M, Haider N, Sturm-Ramirez K, Hasan R, Hossain M, Rahman M, Chowdhury S, Osmani M, Khan S, Azziz-Baumgartner E, Davis C, Zeidner N, Kennedy E. Identification of avian influenza viruses among birds in pet bird markets. Int J Infect Dis 2020. [DOI: 10.1016/j.ijid.2020.09.916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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9
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Sanyaolu A, Okorie C, Marinkovic A, Ayodele O, Abbasi A, Prakash S, Ahmed M, Kayode D, Jaferi U, Haider N. Navigating the Diagnostics of COVID-19. Am J Clin Pathol 2020. [PMCID: PMC7665290 DOI: 10.1093/ajcp/aqaa161.299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Introduction/Objective The recent outbreak of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) began in Hubei province, China in December 2019 and has spread worldwide at an alarming rate. With millions of individuals infected and over two hundred thousand deaths, the necessity to develop fast and efficient diagnostic methods is of high importance. Diagnostic modalities rely on a combination of epidemiology, clinical presentation, laboratory examination, and appropriate imaging to diagnose and distinguish SARS-CoV-2 from other pulmonary infections. The purpose of this paper is to report on currently available diagnostic screening methods for patients infected with SARS-CoV-2 to guide frontline healthcare workers involved with COVID-19 patient care. Methods An electronic literature search was performed for peer-reviewed articles published from January 1, 2020, until April 26, 2020. Articles were then reviewed and included based on the applicability to the topic. Results The preferred diagnostic approach is reverse transcription of the virus’ RNA followed by PCR amplification (RT-PCR). This method recognizes the gene-specific primers to target various viral protein genes, such as the envelope protein gene or the nucleocapsid protein gene, which enables this test to be both sensitive and specific toward SARS-CoV-2. However, this method has been proven to be time-consuming taking hours-to-days for the results. In order to improve the speed and efficiency of diagnostics, newer rapid diagnostic serological tests are being developed for testing SARS-CoV-2, each with its own unique advantages and disadvantages. They could potentially be used as triage tests to rapidly identify patients who are very likely to have COVID-19 in combination with other accurate diagnostic methods. Conclusion Therefore, a combination of diagnostic testing used in a timely manner may be beneficial for the rapid and accurate detection of SARS-CoV-2. This was evident in cases where despite initial negative RT-PCR tests for various patients, who later demonstrate chest CT scans with various degrees of consolidation and ground-glass opacity. Thus establishing the need for radiology diagnosis to be complementary to RT-PCR for COVID-19 patients. Hopefully, the continuous development and use of rapid diagnostic tests and the implementation of public health measures will help control the spread of the disease.
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Affiliation(s)
- A Sanyaolu
- Communicable Diseases, AMOOF Healthcare Consulting, Calgary, Alberta, CANADA
| | - C Okorie
- Essex County College, Newark, New Jersey, UNITED STATES
| | - A Marinkovic
- Saint James School of Medicine, The Valley, ANGUILLA
| | - O Ayodele
- Saint James School of Medicine, The Valley, ANGUILLA
| | - A Abbasi
- Saint James School of Medicine, The Valley, ANGUILLA
| | - S Prakash
- Saint James School of Medicine, The Valley, ANGUILLA
| | - M Ahmed
- Saint James School of Medicine, The Valley, ANGUILLA
| | - D Kayode
- College of Medicine, University of Lagos, Lagos, Lagos, NIGERIA
| | - U Jaferi
- School of Medicine, All Saints University, Roseau, DOMINICA
| | - N Haider
- School of Medicine, All Saints University, Roseau, DOMINICA
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10
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Haider N, Boscá L, Zandbergen HR, Kovacic JC, Narula N, González-Ramos S, Fernandez-Velasco M, Agrawal S, Paz-García M, Gupta S, DeLeon-Pennell K, Fuster V, Ibañez B, Narula J. Transition of Macrophages to Fibroblast-Like Cells in Healing Myocardial Infarction. J Am Coll Cardiol 2019; 74:3124-3135. [PMID: 31856969 PMCID: PMC7425814 DOI: 10.1016/j.jacc.2019.10.036] [Citation(s) in RCA: 76] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Accepted: 10/06/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND Macrophages and fibroblasts are 2 major cell types involved in healing after myocardial infarction (MI), contributing to myocardial remodeling and fibrosis. Post-MI fibrosis progression is characterized by a decrease in cardiac macrophage content. OBJECTIVES This study explores the potential of macrophages to express fibroblast genes and the direct role of these cells in post-MI cardiac fibrosis. METHODS Prolonged in vitro culture of human macrophages was used to evaluate the capacity to express fibroblast markers. Infiltrating cardiac macrophages was tracked in vivo after experimental MI of LysM(Cre/+);ROSA26(EYFP/+) transgenic mice. The expression of Yellow Fluorescent Protein (YFP) in these animals is restricted to myeloid lineage allowing the identification of macrophage-derived fibroblasts. The expression in YFP-positive cells of fibroblast markers was determined in myocardial tissue sections of hearts from these mice after MI. RESULTS Expression of the fibroblast markers type I collagen, prolyl-4-hydroxylase, fibroblast specific protein-1, and fibroblast activation protein was evidenced in YFP-positive cells in the heart after MI. The presence of fibroblasts after MI was evaluated in the hearts of animals after depletion of macrophages with clodronate liposomes. This macrophage depletion significantly reduced the number of Mac3+Col1A1+ cells in the heart after MI. CONCLUSIONS The data provide both in vitro and in vivo evidence for the ability of macrophages to transition and adopt a fibroblast-like phenotype. Therapeutic manipulation of this macrophage-fibroblast transition may hold promise for favorably modulating the fibrotic response after MI and after other cardiovascular pathological processes.
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Affiliation(s)
- Nezam Haider
- Zena and Michael A. Wiener Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, New York, New York; Division of Vascular Surgery, University of Arizona, Tucson, Arizona
| | - Lisardo Boscá
- Instituto de Investigaciones Biomédicas Alberto Sols (CSIC-UAM), Arturo Duperier 4, Madrid, Spain; Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares, Melchor Fernández Almagro, Madrid, Spain.
| | - H Reinier Zandbergen
- Department of Cardiothoracic Surgery, Amsterdam University Medical Center, Amsterdam, the Netherlands
| | - Jason C Kovacic
- Zena and Michael A. Wiener Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Navneet Narula
- Department of Pathology, New York University Langone Medical Center, New York, New York
| | - Silvia González-Ramos
- Instituto de Investigaciones Biomédicas Alberto Sols (CSIC-UAM), Arturo Duperier 4, Madrid, Spain; Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares, Melchor Fernández Almagro, Madrid, Spain
| | - María Fernandez-Velasco
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares, Melchor Fernández Almagro, Madrid, Spain; Instituto de Investigación Biomédica LaPaz, Paseo de la Castellana, Madrid, Spain
| | - Sudhanshu Agrawal
- Division of Basic and Clinical Immunology, University of California, Irvine, California
| | - Marta Paz-García
- Instituto de Investigaciones Biomédicas Alberto Sols (CSIC-UAM), Arturo Duperier 4, Madrid, Spain
| | - Sudhir Gupta
- Division of Basic and Clinical Immunology, University of California, Irvine, California
| | - Kristine DeLeon-Pennell
- Division of Cardiology, Medical University of South Carolina, Ralph H. Johnson Veterans Affairs Medical Center, Charleston, South Carolina
| | - Valentin Fuster
- Zena and Michael A. Wiener Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, New York, New York; Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
| | - Borja Ibañez
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares, Melchor Fernández Almagro, Madrid, Spain; Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain; Instituto de Investigación Sanitaria-Fundación Jiménez Díaz, Madrid, Spain. https://twitter.com/Borjaibanez1
| | - Jagat Narula
- Zena and Michael A. Wiener Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, New York, New York
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11
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Rol MA, Battistel F, Malinowski FK, Bultink CC, Tarasinski BM, Vollmer R, Haider N, Muthusubramanian N, Bruno A, Terhal BM, DiCarlo L. Fast, High-Fidelity Conditional-Phase Gate Exploiting Leakage Interference in Weakly Anharmonic Superconducting Qubits. Phys Rev Lett 2019; 123:120502. [PMID: 31633950 DOI: 10.1103/physrevlett.123.120502] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Indexed: 06/10/2023]
Abstract
Conditional-phase (cz) gates in transmons can be realized by flux pulsing computational states towards resonance with noncomputational ones. We present a 40 ns cz gate based on a bipolar flux pulse suppressing leakage (0.1%) by interference and approaching the speed limit set by exchange coupling. This pulse harnesses a built-in echo to enhance fidelity (99.1%) and is robust to long-timescale distortion in the flux-control line, ensuring repeatability. Numerical simulations matching experiment show that fidelity is limited by high-frequency dephasing and leakage by short-timescale distortion.
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Affiliation(s)
- M A Rol
- QuTech, Delft University of Technology, P.O. Box 5046, 2600 GA Delft, The Netherlands
- Kavli Institute of Nanoscience, Delft University of Technology, P.O. Box 5046, 2600 GA Delft, The Netherlands
| | - F Battistel
- QuTech, Delft University of Technology, P.O. Box 5046, 2600 GA Delft, The Netherlands
| | - F K Malinowski
- QuTech, Delft University of Technology, P.O. Box 5046, 2600 GA Delft, The Netherlands
- Kavli Institute of Nanoscience, Delft University of Technology, P.O. Box 5046, 2600 GA Delft, The Netherlands
| | - C C Bultink
- QuTech, Delft University of Technology, P.O. Box 5046, 2600 GA Delft, The Netherlands
- Kavli Institute of Nanoscience, Delft University of Technology, P.O. Box 5046, 2600 GA Delft, The Netherlands
| | - B M Tarasinski
- QuTech, Delft University of Technology, P.O. Box 5046, 2600 GA Delft, The Netherlands
- Kavli Institute of Nanoscience, Delft University of Technology, P.O. Box 5046, 2600 GA Delft, The Netherlands
| | - R Vollmer
- QuTech, Delft University of Technology, P.O. Box 5046, 2600 GA Delft, The Netherlands
- Kavli Institute of Nanoscience, Delft University of Technology, P.O. Box 5046, 2600 GA Delft, The Netherlands
| | - N Haider
- QuTech, Delft University of Technology, P.O. Box 5046, 2600 GA Delft, The Netherlands
- Netherlands Organisation for Applied Scientic Research (TNO), P.O. Box 96864, 2509 JG The Hague, The Netherlands
| | - N Muthusubramanian
- QuTech, Delft University of Technology, P.O. Box 5046, 2600 GA Delft, The Netherlands
- Kavli Institute of Nanoscience, Delft University of Technology, P.O. Box 5046, 2600 GA Delft, The Netherlands
| | - A Bruno
- QuTech, Delft University of Technology, P.O. Box 5046, 2600 GA Delft, The Netherlands
- Kavli Institute of Nanoscience, Delft University of Technology, P.O. Box 5046, 2600 GA Delft, The Netherlands
| | - B M Terhal
- QuTech, Delft University of Technology, P.O. Box 5046, 2600 GA Delft, The Netherlands
- JARA Institute for Quantum Information, Forschungszentrum Juelich, D-52425 Juelich, Germany
| | - L DiCarlo
- QuTech, Delft University of Technology, P.O. Box 5046, 2600 GA Delft, The Netherlands
- Kavli Institute of Nanoscience, Delft University of Technology, P.O. Box 5046, 2600 GA Delft, The Netherlands
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Lu W, Haider N, Moly P, Zhou W. Abstract 874: Role of Ginsenoside Rb1 in Resistin-Induced Vascular Smooth Muscle Cell Dysfunction. Circ Res 2019. [DOI: 10.1161/res.125.suppl_1.874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background:
Acetyl-LDL and resistin have been proved to play a critical role in inducing VSMC malfunction in the process of atherosclerosis. Ginsenoside Rb1, a major consitituent of Ginseng that has been used for thousands of years, was reported to have powerful vascular-protective effect. Here we aim to explore its protective effect on Acetyl-LDL and resistin induced dysfunction in VSMCs.
Methods:
Human coronary artery smooth muscle cells (HCASMC) were used at passage 5 to 8 for experiments. Cells were treated for various time points with or without resistin at 40 ng/mL and Acetyl-LDL in the presence or absence of Rb1. TBHP was also used as a positive control. Cell migration was analyzed using scratch wound assay, and cytosolic ROS (H2DCFDA as a dye probe) was measured by microplate reader and compared among groups.
Results:
Resistin time-dependently increased HCASMC migration, which could be significantly attenuated by Rb1 at 20μM. Resistin and Act-LDL increased ROS production in HCASMCs to a similar level, while pretreatment with Rb1 reversed the effects by resistin and acetyl-LDL. In addition, we demonstrated that both resistin and Rb1 had dose-dependent effect on ROS production in HCSMCs and that Rb1 at 40μM pre-treatment significantly reduced resistin (40ng/ml) induced cytosolic ROS in VSMCs.
Conclusion:
We demonstrated the protective effect of Rb1 on HCASMC and showed, for the first time, that Rb1 pre-treatment being more effective than co-treatment, suggesting that ginsenoside Rb1 has the potential of protecting against atherosclerosis. More in-dept study is needed.
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Affiliation(s)
- Weifeng Lu
- Div of Vascular Surgery, Dept of Surgery, Univ of Arizona, Tucson, AZ
| | - Nezam Haider
- Div of Vascular Surgery, Dept of Surgery, Univ of Arizona, Tucson, AZ
| | - Pricila Moly
- Div of Vascular Surgery, Dept of Surgery, Univ of Arizona, Tucson, AZ
| | - Wei Zhou
- Div of Vascular Surgery, Dept of Surgery, Univ of Arizona, Tucson, AZ
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Haider N, Moly P, Lu W, Zhou W. Abstract 179: Resistin Regulates ATP-citrate lyase Expression a Key Metabolic Enzyme of Lipogenesis and Histone acetylation in Human Macrophage. Circ Res 2019. [DOI: 10.1161/res.125.suppl_1.179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND:
Human resistin synthesized by macrophages is associated with insulin resistance, type 2 diabetes, atherosclerosis, and chronic inflammation. We used a comparative global protein expression profiling of human macrophage treated with resistin to identify downstream targets and intracellular signaling pathways involving hyper-resistinemia-associated metabolic disorders by HPLC-ESI-MS/MS. ATP-citrate lyase (ACLY), is an essential cytosolic enzyme for generating acetyl-CoA, a key metabolite for glycolysis, de novo lipogenesis, cholesterol synthesis, and histone acetylation. Its dysregulation is associated with diabetes, hypercholesterolemia, and oncogenesis and is a potent therapeutic target . In this study, we explored the regulation of ACLY and its phosphorylation by resistin.
METHODS:
Mϕ derived from THP1 cells were treated with human resistin for 24-72 hrs. Samples of total protein tryptic digest of untreated control and resistin-treated Mϕ were analyzed by HPLC-ESI-MS/MS. Total protein were also analyzed by western blot for ACLY and its phosphorylation . Gene expression was measured by Quantitative Real-time PCR.
RESULTS:
ACLY showed a significant (ρ < 0.05) differences in expression between control and resistin treated groups by quantitative mass spectrometry. ACLY formed protein-protein interaction (PPI) with 23 out of 162 significantly differentially regulated proteins. Level of ACLY protein decreased 2 fold after 48 hours of resistin treatment. However, after 72 hours of resistin treatment ACLY proteins increase with a 4-5 fold increase in its serine 455 phosphorylation (Figure 1). In human macrophage, ACLY mRNA also increased ~2 fold after 24 hours of resistin treatment (Figure 2).
CONCLUSION:
Resistin significantly changed the gene expression of ACLY in humanMϕ. Although there was an initial decrease in ACLY protein with no change in its phosphorylation. However, a longer 72 hours treatment of resistin induce ACLY protein in human macrophages and a very significant increase in its phosphorylation. ACLY plays a pivotal role in many metabolic and epigenetic processes, this late ACLY activation may mediate the effect of resistin on chronic diseases like diabetes, atherosclerosis, and chronic inflammation.
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Haider N. Abstract 425: Resistin induced Differential Global Protein Expression in Human Macrophage. Arterioscler Thromb Vasc Biol 2018. [DOI: 10.1161/atvb.38.suppl_1.425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background:
Human resistin synthesized by macrophages is shown to be associated with insulin resistance, type 2 diabetes, atherosclerosis, and chronic inflammation. However, there are several missing links related to downstream targets and intracellular signaling pathways involving hyper-resistinemia-associated metabolic disorders. In this study, we used a comparative global protein expression profiling of human macrophage treated with resistin to identify some of these missing links.
Methods:
Human macrophage (Mϕ) derived from THP1 cells were treated with 10ng/ml of human resistin for 48 hrs. Samples of total protein tryptic digest of untreated control and resistin-treated Mϕ were analyzed by HPLC-ESI-MS/MS. Differentially expressed proteins were analyzed by using the Gene Ontology (GO), DAVID, and KEGG databases to characterize their potential functional roles and related pathways.
Results:
Proteins with significant (ρ < 0.05) differences in expression between control and resistin treated groups are shown in Table I. The differentially expressed proteins were mainly involved in metabolic process, cell-cell adhesion, MAPK cascade, protein polyubiquitination, autophagy, and NIK/NF-κB signaling. Majority of the differentially expressed proteins were located in the extracellular exosome, mitochondrion, nucleoplasm, and proteasome complex Table II & III.
Conclusion:
Resistin significantly changed the expression of ∼162 proteins in human macrophage. The differentially expressed proteins are involved in metabolic process, signal transduction pathways, immunological and inflammatory response, exosome and mitochondrial function. This work provides the foundation for future in-depth understanding of resistin-associated metabolic derangement.
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Yamaki T, de Haas HJ, Tahara N, Petrov A, Mohar D, Haider N, Zhou J, Tahara A, Takeishi Y, Boersma HH, Scarabelli T, Kini A, Strauss HW, Narula J. Cardioprotection by minocycline in a rabbit model of ischemia/reperfusion injury: Detection of cell death by in vivo 111In-GSAO SPECT. J Nucl Cardiol 2018; 25:94-100. [PMID: 28840574 DOI: 10.1007/s12350-017-1031-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Accepted: 07/05/2017] [Indexed: 01/29/2023]
Abstract
BACKGROUND Preclinical studies indicate that minocycline protects against myocardial ischemia/reperfusion injury. In these studies, minocycline was administered before ischemia, which can rarely occur in clinical practice. The current study aimed to evaluate cardioprotection by minocycline treatment upon reperfusion. METHODS Rabbits were subjected to myocardial ischemia/reperfusion injury and received either intravenous minocycline (n = 8) or saline (n = 8) upon reperfusion. Cardiac cell death was assessed by in vivo micro-SPECT/CT after injection of Indium-111-labeled 4-(N-(S-glutathionylacetyl)amino) phenylarsonous acid (111In-GSAO). Thereafter, hearts were explanted for ex vivo imaging, γ-counting, and histopathological characterization. RESULTS Myocardial damage was visualized by micro-SPECT/CT imaging. Quantitative GSAO uptake (expressed as percent injected dose per gram, %ID/g) in the area at risk was lower in minocycline-treated animals than that in saline-treated control animals (0.32 ± 0.13% vs 0.48 ± 0.15%, P = 0.04). TUNEL staining confirmed the reduction of cell death in minocycline-treated animals. CONCLUSIONS This study demonstrates cardioprotection by minocycline in a clinically translatable protocol.
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Affiliation(s)
- Takayoshi Yamaki
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan
| | - Hans J de Haas
- The Zena and Michael A. Wiener Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY, 10029, USA
- Department of Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Nobuhiro Tahara
- Department of Medicine, Division of Cardio-Vascular Medicine, Kurume University School of Medicine, Kurume, Japan
| | - Artiom Petrov
- The Zena and Michael A. Wiener Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY, 10029, USA
| | - Dilbahar Mohar
- Division of Cardiology, University of California, Irvine, CA, USA
| | - Nezam Haider
- The Zena and Michael A. Wiener Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY, 10029, USA
| | - Jun Zhou
- Division of Cardiology, University of California, Irvine, CA, USA
| | - Atsuko Tahara
- Department of Medicine, Division of Cardio-Vascular Medicine, Kurume University School of Medicine, Kurume, Japan
| | - Yasuchika Takeishi
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan
| | - Hendrikus H Boersma
- Department of Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
- Department of Clinical Pharmacy and Pharmacology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Tiziano Scarabelli
- The Zena and Michael A. Wiener Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY, 10029, USA
| | - Annapoorna Kini
- The Zena and Michael A. Wiener Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY, 10029, USA
| | - H William Strauss
- The Zena and Michael A. Wiener Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY, 10029, USA
| | - Jagat Narula
- The Zena and Michael A. Wiener Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY, 10029, USA.
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Tanimoto T, Parseghian MH, Nakahara T, Kawai H, Narula N, Kim D, Nishimura R, Weisbart RH, Chan G, Richieri RA, Haider N, Chaudhry F, Reynolds GT, Billimek J, Blankenberg FG, Sengupta PP, Petrov AD, Akasaka T, Strauss HW, Narula J. Cardioprotective Effects of HSP72 Administration on Ischemia-Reperfusion Injury. J Am Coll Cardiol 2017; 70:1479-1492. [PMID: 28911512 DOI: 10.1016/j.jacc.2017.07.762] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2017] [Revised: 06/06/2017] [Accepted: 07/17/2017] [Indexed: 02/09/2023]
Abstract
BACKGROUND Although early reperfusion is the most desirable intervention after ischemic myocardial insult, it may add to damage through oxidative stress. OBJECTIVES This study investigated the cardioprotective effects of a single intravenous dose of heat shock protein-72 (HSP72) coupled to a single-chain variable fragment (Fv) of monoclonal antibody 3E10 (3E10Fv) in a rabbit ischemia-reperfusion model. The Fv facilitates rapid transport of HSP72 into cells, even with intact membranes. METHODS A left coronary artery occlusion (40 min) reperfusion (3 h) model was used in 31 rabbits. Of these, 12 rabbits received the fusion protein (Fv-HSP72) intravenously. The remaining 19 control rabbits received a molar equivalent of 3E10Fv alone (n = 6), HSP72 alone (n = 6), or phosphate-buffered saline (n = 7). Serial echocardiographic examinations were performed to assess left ventricular function before and after reperfusion. Micro-single-photon emission computed tomography imaging of 99mTc-labeled annexin-V was performed with micro-computed tomography scanning to characterize apoptotic damage in vivo, followed by gamma counting of the excised myocardial specimens to quantify cell death. Histopathological characterization of the myocardial tissue and sequential cardiac troponin I measurements were also undertaken. RESULTS Myocardial annexin-V uptake was 43% lower in the area at risk (p = 0.0003) in Fv-HSP72-treated rabbits compared with control animals receiving HSP72 or 3E10Fv alone. During reperfusion, troponin I release was 42% lower and the echocardiographic left ventricular ejection fraction 27% higher in the Fv-HSP72-treated group compared with control animals. Histopathological analyses confirmed penetration of 3E10Fv-containing molecules into cardiomyocytes in vivo, and treatment with Fv-HSP72 showed fewer apoptotic nuclei compared with control rabbits. CONCLUSIONS Single-dose administration of Fv-HSP72 fusion protein at the time of reperfusion reduced myocardial apoptosis by almost one-half and improved left ventricular functional recovery after myocardial ischemia-reperfusion injury in rabbits. It might have potential to serve as an adjunct to early reperfusion in the management of myocardial infarction.
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Affiliation(s)
- Takashi Tanimoto
- Icahn School of Medicine at Mount Sinai, New York, New York; Wakayama Medical University, Wakayama, Japan
| | | | | | - Hideki Kawai
- Icahn School of Medicine at Mount Sinai, New York, New York
| | | | - Dongbin Kim
- Icahn School of Medicine at Mount Sinai, New York, New York
| | - Robert Nishimura
- Veterans Affairs Greater Los Angeles Healthcare System, Los Angeles, California; University of California Geffen School of Medicine, Los Angeles, California
| | - Richard H Weisbart
- Veterans Affairs Greater Los Angeles Healthcare System, Los Angeles, California; University of California Geffen School of Medicine, Los Angeles, California
| | - Grace Chan
- Veterans Affairs Greater Los Angeles Healthcare System, Los Angeles, California
| | | | - Nezam Haider
- Icahn School of Medicine at Mount Sinai, New York, New York
| | | | | | - John Billimek
- University of California, Irvine, Irvine, California
| | | | | | | | | | | | - Jagat Narula
- Icahn School of Medicine at Mount Sinai, New York, New York.
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Haider N, Khan MSU, Hossain MB, Sazzad HMS, Rahman MZ, Ahmed F, Zeidner NS. Serological evidence of hepatitis E virus infection in pigs and jaundice among pig handlers in Bangladesh. Zoonoses Public Health 2017; 64:572-577. [PMID: 28670851 DOI: 10.1111/zph.12372] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Indexed: 11/30/2022]
Abstract
Hepatitis E virus (HEV) is the most common cause of viral hepatitis in humans. Pigs may act as a reservoir of HEV, and pig handlers were frequently identified with a higher prevalence of antibodies to HEV. The objectives of this study were to identify evidence of HEV infection in pigs and compare the history of jaundice between pig handlers and people not exposed to pigs and pork. Blood and faecal samples were collected from 100 pigs derived from three slaughterhouses in the Gazipur district of Bangladesh from January to June, 2011. We also interviewed 200 pig handlers and 250 non-exposed people who did not eat pork or handled pigs in the past 2 years. We tested the pig sera for HEV-specific antibodies using a competitive ELISA and pig faecal samples for HEV RNA using real-time RT-PCR. Of 100 pig sera, 82% (n = 82) had detectable antibody against HEV. Of the 200 pig handlers, 28% (56/200) demonstrated jaundice within the past 2 years, whereas only 17% (43/250) of controls had a history of jaundice (p < .05). Compared to non-exposed people, those who slaughtered pigs (31% versus 15%, p < .001), reared pigs (37% versus 20%, p < .001), butchered pigs (35% versus 19%, p < .001) or involved in pork transportation (28% versus 13%, p < .001) were more likely to be affected with jaundice in the preceding 2 years. In multivariate logistic regression analysis, exposure to pigs (odds ratio [OR]: 2.2, 95% CI: 1.2-3.9) and age (OR: 0.97, 95% CI: 0.95-0.99) was significantly associated with jaundice in the past 2 years. Pigs in Bangladesh demonstrated evidence of HEV infection, and a history of jaundice was significantly more frequent in pig handlers. Identifying and genotyping HEV in pigs and pig handlers may provide further evidence of the pig's role in zoonotic HEV transmission in Bangladesh.
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Affiliation(s)
- N Haider
- International Centre for Diarrhoeal Diseases Research, Dhaka, Bangladesh.,American International University-Bangladesh, Dhaka, Bangladesh.,Section for Diagnostics and Scientific Advice, National Veterinary Institute, Technical University of Denmark, Copenhagen, Denmark
| | - M S U Khan
- International Centre for Diarrhoeal Diseases Research, Dhaka, Bangladesh.,Universirty of Guelph, Guelph, ON, Canada
| | - M B Hossain
- International Centre for Diarrhoeal Diseases Research, Dhaka, Bangladesh
| | - H M S Sazzad
- International Centre for Diarrhoeal Diseases Research, Dhaka, Bangladesh
| | - M Z Rahman
- International Centre for Diarrhoeal Diseases Research, Dhaka, Bangladesh
| | - F Ahmed
- International Centre for Diarrhoeal Diseases Research, Dhaka, Bangladesh
| | - N S Zeidner
- International Centre for Diarrhoeal Diseases Research, Dhaka, Bangladesh
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Rimi NA, Sultana R, Muhsina M, Uddin B, Haider N, Nahar N, Zeidner N, Sturm-Ramirez K, Luby SP. Biosecurity Conditions in Small Commercial Chicken Farms, Bangladesh 2011-2012. Ecohealth 2017; 14:244-258. [PMID: 28289988 PMCID: PMC5942227 DOI: 10.1007/s10393-017-1224-2] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Revised: 01/09/2017] [Accepted: 01/22/2017] [Indexed: 05/25/2023]
Abstract
In Bangladesh, highly pathogenic avian influenza H5N1 is endemic in poultry. This study aimed to understand the biosecurity conditions and farmers' perception of avian influenza biosecurity in Bangladeshi small commercial chicken farms. During 2011-2012, we conducted observations, in-depth interviews and group discussions with poultry farmers in 16 farms and in-depth interviews with seven local feed vendors from two districts. None of the farms were completely segregated from people, backyard poultry, other animals, households, other poultry farms or large trees. Wild birds and rodents accessed the farms for poultry feed. Farmers usually did not allow the buyers to bring egg trays inside their sheds. Spraying disinfectant in the shed and removing feces were the only regular cleaning and disinfection activities observed. All farmers sold or used untreated feces as fish feed or fertilizer. Farmers were more concerned about Newcastle disease and infectious bursal disease than about avian influenza. Farmers' understanding about biosecurity and avian influenza was influenced by local vendors. While we seldom observed flock segregation, some farmers used measures that involved additional cost or effort to protect their flocks. These farmers could be motivated by interventions to protect their investment from diseases they consider harmful. Future interventions could explore the feasibility and effectiveness of low-cost alternative biosecurity measures.
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Affiliation(s)
- N A Rimi
- Program on Emerging Infections, Infectious Diseases Division, icddr,b, 68, Shaheed Tajuddin Ahmed Sharani, Mohakhali, Dhaka, 1212, Bangladesh.
| | - R Sultana
- Program on Emerging Infections, Infectious Diseases Division, icddr,b, 68, Shaheed Tajuddin Ahmed Sharani, Mohakhali, Dhaka, 1212, Bangladesh
| | - M Muhsina
- Program on Emerging Infections, Infectious Diseases Division, icddr,b, 68, Shaheed Tajuddin Ahmed Sharani, Mohakhali, Dhaka, 1212, Bangladesh
| | - B Uddin
- Program on Emerging Infections, Infectious Diseases Division, icddr,b, 68, Shaheed Tajuddin Ahmed Sharani, Mohakhali, Dhaka, 1212, Bangladesh
| | - N Haider
- Program on Emerging Infections, Infectious Diseases Division, icddr,b, 68, Shaheed Tajuddin Ahmed Sharani, Mohakhali, Dhaka, 1212, Bangladesh
- Technical University of Denmark, Copenhagen, Denmark
| | - N Nahar
- Program on Emerging Infections, Infectious Diseases Division, icddr,b, 68, Shaheed Tajuddin Ahmed Sharani, Mohakhali, Dhaka, 1212, Bangladesh
| | - N Zeidner
- Program on Emerging Infections, Infectious Diseases Division, icddr,b, 68, Shaheed Tajuddin Ahmed Sharani, Mohakhali, Dhaka, 1212, Bangladesh
- Centers for Disease Control and Prevention (CDC), Atlanta, GA, USA
| | - K Sturm-Ramirez
- Program on Emerging Infections, Infectious Diseases Division, icddr,b, 68, Shaheed Tajuddin Ahmed Sharani, Mohakhali, Dhaka, 1212, Bangladesh
- Centers for Disease Control and Prevention (CDC), Atlanta, GA, USA
| | - S P Luby
- Program on Emerging Infections, Infectious Diseases Division, icddr,b, 68, Shaheed Tajuddin Ahmed Sharani, Mohakhali, Dhaka, 1212, Bangladesh
- Centers for Disease Control and Prevention (CDC), Atlanta, GA, USA
- Stanford University, Stanford, CA, USA
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Affiliation(s)
- N Haider
- Department of Basic Medical Sciences, Prince Sultan Military College of Health Sciences, King Fahd Military Medical Complex, Dhahran, Saudia Arabia
| | - F Mazhar
- Department of Basic Medical Sciences, Prince Sultan Military College of Health Sciences, King Fahd Military Medical Complex, Dhahran, Saudia Arabia
| | - M Ahmed
- Department of Pharmaceutical Service, Almana General Hospital, Dammam, Saudia Arabia
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Abstract
The regulation of adipose tissue expansion by adipocyte hypertrophy and/or hyperplasia is the topic of extensive investigations given the potential differential contribution of the 2 processes to the development of numerous chronic diseases associated with obesity. We recently discovered that the loss-of-function of the Src homology domain-containing protein Nck2 in mice promotes adiposity accompanied with adipocyte hypertrophy and impaired function, and enhanced adipocyte differentiation in vitro. Moreover, in severely-obese human's adipose tissue, we found that Nck2 expression is markedly downregulated. In this commentary, our goal is to expand upon additional findings providing further evidence for a unique Nck2-dependent mechanism regulating adipogenesis. We propose that Nck2 should be further investigated as a regulator of the reliance of white adipose tissue on hyperplasia versus hypertrophy during adipose tissue expansion, and hence, as a potential novel molecular target in obesity.
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Affiliation(s)
- N. Haider
- Department of Medicine, McGill University, Montreal, Quebec, Canada
- McGill University Health Centre Research Institute (MUHC-RI), Montreal, Quebec, Canada
| | - J. Dusseault
- Department of Medicine, McGill University, Montreal, Quebec, Canada
- McGill University Health Centre Research Institute (MUHC-RI), Montreal, Quebec, Canada
| | - A. Rudich
- Department of Clinical Biochemistry and Pharmacology, Ben-Gurion University of the Negev, Beer-Sheva, Israel
- National Institute of Biotechnology in the Negev (NIBN), Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - L. Larose
- Department of Medicine, McGill University, Montreal, Quebec, Canada
- McGill University Health Centre Research Institute (MUHC-RI), Montreal, Quebec, Canada
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Nakahara T, Tanimoto T, Parseghian MH, Kawai H, Narula N, Kim D, Nishimura R, Weisbart RH, Chan G, Richieri RA, Haider N, Reynolds GT, Billimek J, Blankenberg FG, Petrov AD, Sengupta P, Akasaka T, Strauss H, Narula J. FV-HSP70 PROTECTS MYOCARDIUM FROM ISCHEMIC/REPERFUSION INJURY. J Am Coll Cardiol 2017. [DOI: 10.1016/s0735-1097(17)33427-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Kini AS, Vengrenyuk Y, Shameer K, Maehara A, Purushothaman M, Yoshimura T, Matsumura M, Aquino M, Haider N, Johnson KW, Readhead B, Kidd BA, Feig JE, Krishnan P, Sweeny J, Milind M, Moreno P, Mehran R, Kovacic JC, Baber U, Dudley JT, Narula J, Sharma S. Intracoronary Imaging, Cholesterol Efflux, and Transcriptomes After Intensive Statin Treatment. J Am Coll Cardiol 2017; 69:628-640. [DOI: 10.1016/j.jacc.2016.10.029] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Revised: 10/24/2016] [Accepted: 10/24/2016] [Indexed: 12/31/2022]
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23
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Shanta IS, Hasnat MA, Zeidner N, Gurley ES, Azziz-Baumgartner E, Sharker MAY, Hossain K, Khan SU, Haider N, Bhuyan AA, Hossain MA, Luby SP. Raising Backyard Poultry in Rural Bangladesh: Financial and Nutritional Benefits, but Persistent Risky Practices. Transbound Emerg Dis 2016; 64:1454-1464. [PMID: 27311406 DOI: 10.1111/tbed.12536] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Indexed: 11/27/2022]
Abstract
Poultry is commonly raised by households in rural Bangladesh. In 2007, the Government of Bangladesh began a mass media campaign to disseminate 10 recommended precautions to prevent transmission of H5N1 from poultry to humans. This longitudinal study explored the contribution of backyard poultry on household economy and nutrition and compared poultry-raising practices to government recommendations. From 2009 to 2012, we enrolled a nationally representative sample of 2489 primary backyard poultry raisers from 115 rural villages selected by probability proportional to population size. Researchers interviewed the raisers to collect data on poultry-raising practices. They followed the raisers for 2-12 months to collect data on household income and nutrition from poultry. Income from backyard poultry flocks accounted for 2.8% of monthly household income. Return on annual investment (ROI) per flock was 480%. Yearly, median family consumption of eggs was one-fifth of the total produced eggs and three poultry from their own flock. Respondents' reported practices conflicted with government recommendations. Sixty per cent of raisers had never heard of avian influenza or 'bird flu'. Among the respondents, 85% handled sick poultry or poultry that died due to illness, and 49% slaughtered or defeathered sick poultry. In 37% of households, children touched poultry. Fifty-eight per cent never washed their hands with soap after handling poultry, while <1% covered their nose and mouth with a cloth when handling poultry. Only 3% reported poultry illness and deaths to local authorities. These reported practices did not improve during the study period. Raising backyard poultry in rural Bangladesh provides important income and nutrition with an excellent ROI. Government recommendations to reduce the risk of avian influenza transmission did not impact the behaviour of poultry producers. Further research should prioritize developing interventions that simultaneously reduce the risk of avian influenza transmission and increase productivity of backyard poultry.
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Affiliation(s)
| | | | | | | | - E Azziz-Baumgartner
- Influenza Division, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - M A Y Sharker
- icddr,b, Dhaka, Bangladesh.,College of Public Health and Health Professions, University of Florida, Gainesville, FL, USA
| | | | - S U Khan
- icddr,b, Dhaka, Bangladesh.,College of Public Health and Health Professions, University of Florida, Gainesville, FL, USA
| | - N Haider
- icddr,b, Dhaka, Bangladesh.,Section for Epidemiology, DTU vet, Technical University of Denmark, Copenhagen, Denmark
| | - A A Bhuyan
- icddr,b, Dhaka, Bangladesh.,Department of Animal Husbandry and Veterinary Science, University of Rajshahi, Rajshahi, Bangladesh
| | - Md A Hossain
- Department of Livestock Service, Ministry of Fisheries and Livestock, Dhaka, Bangladesh
| | - S P Luby
- icddr,b, Dhaka, Bangladesh.,Division of Infectious Disease and Geographic Medicine, Stanford University, Stanford, CA, USA
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Haider N, Khan SU, Islam A, Osmani MG, Rahman MZ, Epstein JH, Daszak P, Zeidner NS. Efficiency of the Clinical Veterinary Diagnostic Practices and Drug Choices for Infectious Diseases in Livestock in Bangladesh. Transbound Emerg Dis 2016; 64:1329-1333. [PMID: 27062143 DOI: 10.1111/tbed.12502] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2015] [Indexed: 10/22/2022]
Abstract
As in most low-income countries, adequate laboratory facilities are not available in Bangladesh to assist veterinarians in diagnosing animal diseases. We aimed to determine the efficiency of veterinary diagnoses for two common ruminant diseases in Bangladesh: Peste des petits ruminants (PPR) and foot-and-mouth disease (FMD). We conducted the study from May 2009 to August 2010 in three government veterinary hospitals where veterinarians collected samples from sick livestock and recorded the presumptive diagnosis on the basis of clinical presentations. Samples were tested for PPR and FMD using real-time RT-PCR. We estimated the sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV) of the presumptive diagnoses when compared to laboratory tests. We tested 539 goats for PPR and 340 cattle and goats for FMD. Our results indicate that the veterinarians' presumptive diagnoses were different from laboratory findings for both PPR (P < 0.05) and FMD (P < 0.05). The overall sensitivity of the presumptive clinical diagnoses was 54% (95% CI: 47-61%) while specificity was 81% (95% CI: 78-84%) compared to real-time RT-PCR tests. The kappa value obtained in our validation process for PPR (kappa: 0.25) and FMD (kappa 0.36) indicated a poor performance of the presumptive diagnoses. Most of the animals (93%) were treated with antibiotics. Our findings indicate that veterinarians can detect animals not infected with FMD or PPR but miss the true cases. The clinical competency of these veterinarians needs to be improved and access to laboratory diagnostic facilities could help veterinarians to improve the diagnostics and outcomes. The rational use of antibiotics by veterinarians in animals must be ensured.
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Affiliation(s)
- N Haider
- Center for Communicable Diseases, International Centre for Diarrhoeal Disease Research, Bangladesh, Dhaka, Bangladesh.,Section for Epidemiology, National Veterinary Institute, Technical University of Denmark, Copenhagen, Denmark
| | - S U Khan
- Center for Communicable Diseases, International Centre for Diarrhoeal Disease Research, Bangladesh, Dhaka, Bangladesh.,College of Public Health and Health professions, University of Florida, Gainesville, FL, USA
| | - A Islam
- EcoHealth Alliance, New York, NY, USA
| | - M G Osmani
- Department of Livestock Services, Ministry of Fisheries and Livestock, Dhaka, Bangladesh
| | - M Z Rahman
- Center for Communicable Diseases, International Centre for Diarrhoeal Disease Research, Bangladesh, Dhaka, Bangladesh
| | | | - P Daszak
- EcoHealth Alliance, New York, NY, USA
| | - N S Zeidner
- Center for Communicable Diseases, International Centre for Diarrhoeal Disease Research, Bangladesh, Dhaka, Bangladesh
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Haider SA, Cameron A, Siva P, Lui D, Shafiee MJ, Boroomand A, Haider N, Wong A. Fluorescence microscopy image noise reduction using a stochastically-connected random field model. Sci Rep 2016; 6:20640. [PMID: 26884148 PMCID: PMC4756687 DOI: 10.1038/srep20640] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2014] [Accepted: 01/07/2016] [Indexed: 12/05/2022] Open
Abstract
Fluorescence microscopy is an essential part of a biologist’s toolkit, allowing assaying of many parameters like subcellular localization of proteins, changes in cytoskeletal dynamics, protein-protein interactions, and the concentration of specific cellular ions. A fundamental challenge with using fluorescence microscopy is the presence of noise. This study introduces a novel approach to reducing noise in fluorescence microscopy images. The noise reduction problem is posed as a Maximum A Posteriori estimation problem, and solved using a novel random field model called stochastically-connected random field (SRF), which combines random graph and field theory. Experimental results using synthetic and real fluorescence microscopy data show the proposed approach achieving strong noise reduction performance when compared to several other noise reduction algorithms, using quantitative metrics. The proposed SRF approach was able to achieve strong performance in terms of signal-to-noise ratio in the synthetic results, high signal to noise ratio and contrast to noise ratio in the real fluorescence microscopy data results, and was able to maintain cell structure and subtle details while reducing background and intra-cellular noise.
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Affiliation(s)
- S A Haider
- Vision and Image Processing (VIP) Research Group, Department of Systems Design Engineering, University of Waterloo, 200 University Avenue W, Waterloo, ON, N2L 3G1, Canada
| | - A Cameron
- Vision and Image Processing (VIP) Research Group, Department of Systems Design Engineering, University of Waterloo, 200 University Avenue W, Waterloo, ON, N2L 3G1, Canada
| | - P Siva
- Vision and Image Processing (VIP) Research Group, Department of Systems Design Engineering, University of Waterloo, 200 University Avenue W, Waterloo, ON, N2L 3G1, Canada
| | - D Lui
- Vision and Image Processing (VIP) Research Group, Department of Systems Design Engineering, University of Waterloo, 200 University Avenue W, Waterloo, ON, N2L 3G1, Canada
| | - M J Shafiee
- Vision and Image Processing (VIP) Research Group, Department of Systems Design Engineering, University of Waterloo, 200 University Avenue W, Waterloo, ON, N2L 3G1, Canada
| | - A Boroomand
- Vision and Image Processing (VIP) Research Group, Department of Systems Design Engineering, University of Waterloo, 200 University Avenue W, Waterloo, ON, N2L 3G1, Canada
| | - N Haider
- Department of Medical Biophysics, University of Toronto, 610 University Avenue, Toronto, ON, M5G 2M9, Canada
| | - A Wong
- Vision and Image Processing (VIP) Research Group, Department of Systems Design Engineering, University of Waterloo, 200 University Avenue W, Waterloo, ON, N2L 3G1, Canada
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Al-Herz A, Saleh K, Al-Awadhi A, Al-Kandari W, Hasan E, Abutiban F, Alenizi A, Ghanem A, Hussain M, Ali Y, Khadrawy A, Fazal A, Mokaddem K, Aftab B, Haider N, Zaman A, Mazloum G, Bartella Y, Al-Saber A, Esdaile J. THU0128 Characteristics of Patients with Rheumatoid Arthritis in Kuwait: Results from the Krrd Registry. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.1739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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27
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Haider N, Sturm-Ramirez K, Khan SU, Rahman MZ, Sarkar S, Poh MK, Shivaprasad HL, Kalam MA, Paul SK, Karmakar PC, Balish A, Chakraborty A, Mamun AA, Mikolon AB, Davis CT, Rahman M, Donis RO, Heffelfinger JD, Luby SP, Zeidner N. Unusually High Mortality in Waterfowl Caused by Highly Pathogenic Avian Influenza A(H5N1) in Bangladesh. Transbound Emerg Dis 2015; 64:144-156. [PMID: 25892457 DOI: 10.1111/tbed.12354] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2014] [Indexed: 12/22/2022]
Abstract
Mortality in ducks and geese caused by highly pathogenic avian influenza A(H5N1) infection had not been previously identified in Bangladesh. In June-July 2011, we investigated mortality in ducks, geese and chickens with suspected H5N1 infection in a north-eastern district of the country to identify the aetiologic agent and extent of the outbreak and identify possible associated human infections. We surveyed households and farms with affected poultry flocks in six villages in Netrokona district and collected cloacal and oropharyngeal swabs from sick birds and tissue samples from dead poultry. We conducted a survey in three of these villages to identify suspected human influenza-like illness cases and collected nasopharyngeal and throat swabs. We tested all swabs by real-time RT-PCR, sequenced cultured viruses, and examined tissue samples by histopathology and immunohistochemistry to detect and characterize influenza virus infection. In the six villages, among the 240 surveyed households and 11 small-scale farms, 61% (1789/2930) of chickens, 47% (4816/10 184) of ducks and 73% (358/493) of geese died within 14 days preceding the investigation. Of 70 sick poultry swabbed, 80% (56/70) had detectable RNA for influenza A/H5, including 89% (49/55) of ducks, 40% (2/5) of geese and 50% (5/10) of chickens. We isolated virus from six of 25 samples; sequence analysis of the hemagglutinin and neuraminidase gene of these six isolates indicated clade 2.3.2.1a of H5N1 virus. Histopathological changes and immunohistochemistry staining of avian influenza viral antigens were recognized in the brain, pancreas and intestines of ducks and chickens. We identified ten human cases showing signs compatible with influenza-like illness; four were positive for influenza A/H3; however, none were positive for influenza A/H5. The recently introduced H5N1 clade 2.3.2.1a virus caused unusually high mortality in ducks and geese. Heightened surveillance in poultry is warranted to guide appropriate diagnostic testing and detect novel influenza strains.
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Affiliation(s)
- N Haider
- International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh.,Section for Epidemiology, National Veterinary Institute, Technical University of Denmark, Copenhagen, Denmark
| | - K Sturm-Ramirez
- International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh.,Centers for Disease Control and Prevention (CDC), Atlanta, GA, USA
| | - S U Khan
- International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh.,College of Public Health and Health Professions, University of Florida, Gainesville, FL, USA
| | - M Z Rahman
- International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - S Sarkar
- International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - M K Poh
- Centers for Disease Control and Prevention (CDC), Atlanta, GA, USA
| | | | - M A Kalam
- Department of Livestock Services, Ministry of Fisheries and Livestock, Dhaka, Bangladesh
| | - S K Paul
- International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - P C Karmakar
- International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - A Balish
- Centers for Disease Control and Prevention (CDC), Atlanta, GA, USA
| | - A Chakraborty
- International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - A A Mamun
- International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - A B Mikolon
- International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh.,United States Department of Agriculture (USDA), Hawthorne, CA, USA
| | - C T Davis
- Centers for Disease Control and Prevention (CDC), Atlanta, GA, USA
| | - M Rahman
- Institute of Epidemiology, Diseases Control and Research (IEDCR), Dhaka, Bangladesh
| | - R O Donis
- Centers for Disease Control and Prevention (CDC), Atlanta, GA, USA
| | - J D Heffelfinger
- International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh.,Centers for Disease Control and Prevention (CDC), Atlanta, GA, USA
| | - S P Luby
- International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh.,Division of Infectious Disease and Geographic Medicine, Stanford University, Stanford, CA, USA
| | - N Zeidner
- International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh.,Centers for Disease Control and Prevention (CDC), Atlanta, GA, USA
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Haider N, Rahman MS, Khan SU, Mikolon A, Gurley ES, Osmani MG, Shanta IS, Paul SK, Macfarlane-Berry L, Islam A, Desmond J, Epstein JH, Daszak P, Azim T, Luby SP, Zeidner N, Rahman MZ. Identification and Epidemiology of a Rare HoBi-Like Pestivirus Strain in Bangladesh. Transbound Emerg Dis 2014; 61:193-8. [DOI: 10.1111/tbed.12218] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2013] [Indexed: 11/30/2022]
Affiliation(s)
- N. Haider
- International Centre for Diarrheal Diseases Research; Dhaka Bangladesh
| | - M. S. Rahman
- International Centre for Diarrheal Diseases Research; Dhaka Bangladesh
| | - S. U. Khan
- International Centre for Diarrheal Diseases Research; Dhaka Bangladesh
- College of Public Health and Health Professions; University of Florida; Gainesville FL USA
| | - A. Mikolon
- United States Department of Agriculture (USDA); 11850 S. La Cienega; Hawthorne CA USA
| | - E. S. Gurley
- International Centre for Diarrheal Diseases Research; Dhaka Bangladesh
| | - M. G. Osmani
- Department of Livestock Services; Ministries of Fisheries and Livestock; Dhaka Bangladesh
| | - I. S. Shanta
- International Centre for Diarrheal Diseases Research; Dhaka Bangladesh
| | - S. K. Paul
- International Centre for Diarrheal Diseases Research; Dhaka Bangladesh
| | | | - A. Islam
- EcoHealth Alliance; New York NY USA
| | | | | | | | - T. Azim
- International Centre for Diarrheal Diseases Research; Dhaka Bangladesh
| | - S. P. Luby
- International Centre for Diarrheal Diseases Research; Dhaka Bangladesh
- Stanford University; Stanford CA USA
| | - N. Zeidner
- International Centre for Diarrheal Diseases Research; Dhaka Bangladesh
- U.S. Centers for Disease Control and Prevention; Atlanta GA USA
| | - M. Z. Rahman
- International Centre for Diarrheal Diseases Research; Dhaka Bangladesh
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Tahara N, Mukherjee J, de Haas HJ, Petrov AD, Tawakol A, Haider N, Tahara A, Constantinescu CC, Zhou J, Boersma HH, Imaizumi T, Nakano M, Finn A, Fayad Z, Virmani R, Fuster V, Bosca L, Narula J. 2-deoxy-2-[18F]fluoro-D-mannose positron emission tomography imaging in atherosclerosis. Nat Med 2014; 20:215-9. [PMID: 24412923 DOI: 10.1038/nm.3437] [Citation(s) in RCA: 117] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2013] [Accepted: 04/17/2013] [Indexed: 02/07/2023]
Abstract
Progressive inflammation in atherosclerotic plaques is associated with increasing risk of plaque rupture. Molecular imaging of activated macrophages with 2-deoxy-2-[(18)F]fluoro-D-glucose ([(18)F]FDG) has been proposed for identification of patients at higher risk for acute vascular events. Because mannose is an isomer of glucose that is taken up by macrophages through glucose transporters and because mannose receptors are expressed on a subset of the macrophage population in high-risk plaques, we applied (18)F-labeled mannose (2-deoxy-2-[(18)F]fluoro-D-mannose, [(18)F]FDM) for targeting of plaque inflammation. Here, we describe comparable uptake of [(18)F]FDM and [(18)F]FDG in atherosclerotic lesions in a rabbit model; [(18)F]FDM uptake was proportional to the plaque macrophage population. Our FDM competition studies in cultured cells with 2-deoxy-2-[(14)C]carbon-D-glucose ([(14)C]2DG) support at least 35% higher [(18)F]FDM uptake by macrophages in cell experiments. We also demonstrate that FDM restricts binding of anti-mannose receptor antibody to macrophages by approximately 35% and that mannose receptor targeting may provide an additional avenue for imaging of plaque inflammation.
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Affiliation(s)
| | | | - Hans J de Haas
- 1] Icahn School of Medicine at Mount Sinai, New York, New York, USA. [2] University Medical Center Groningen, University of Groningen, Groningen, The Netherlands. [3]
| | - Artiom D Petrov
- Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Ahmed Tawakol
- Harvard Medical School and Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Nezam Haider
- Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | | | | | | | - Hendrikus H Boersma
- University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | | | | | - Aloke Finn
- Emory University School of Medicine, Atlanta, Georgia, USA
| | - Zahi Fayad
- Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | | | - Valentin Fuster
- 1] Icahn School of Medicine at Mount Sinai, New York, New York, USA. [2] Centro Nacional de Investigaciones Cardiovasculares Carlos III, Madrid, Spain
| | - Lisardo Bosca
- Instituto de Investigaciones Biomédicas Alberto Sols (Centro Mixto Consejo Superior de Investigaciones Científicas-Universidad Autónoma de Madrid), Madrid, Spain
| | - Jagat Narula
- Icahn School of Medicine at Mount Sinai, New York, New York, USA
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O'Callaghan A, Colgan MP, McGuigan C, Smyth F, Haider N, O'Neill S, Moore D, Madhavan P. Re: using HIPE data for research and audit: critical factors for success. Ir Med J 2013; 106:157; discussion 157. [PMID: 23914584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
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Abstract
Understanding the origin of cultivated wheats would further their genetic improvement. The hexaploid bread wheat (Triticum aestivum L., AABBDD) is believed to have originated through one or more rare hybridization events between Aegilops tauschii (DD) and the tetraploid T. turgidum (AABB). Progenitor of the A-genome of the tetraploid and hexaploid wheats has generally been accepted to be T. urartu. In spite of the large number of attempts and published reports about the origin of the B-genome in cultivated wheats, the donor of the B-genome is still relatively unknown and controversial and, hence, remains open. This genome has been found to be closely related to the S-genome of the Sitopsis section (Ae. speltoides, Ae. longissima, Ae. sharonensis, Ae. searsii, and Ae. bicornis) of the genus Aegilops L. Among Sitopsis species, the most positive evidence has been accumulated for Ae. speltoides as the progenitor of the B-genome. Therefore, one or more of the Sitopsis species were proposed frequently as the B-genome donor. Although several reviews have been written on the origin of the genomes of wheat over the years, this paper will attempt for the first time to review the immense literature on the subject, with a particular emphasis on the B-genome which has attracted a huge attention over some 100 years. The ambiguity and conflicting results in most of the methods employed in deducing the precise B-genome donor/s to bread wheat are also discussed.
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Affiliation(s)
- N Haider
- Department of Molecular Biology and Biotechnology, AECS, P.O. Box 6091, Damascus, Syria.
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Abstract
INTRODUCTION The plastibell device is used successfully for religious and cultural circumcisions in the community. The aim of this article is to highlight the recognition and management of iatrogenic phimosis. METHODS A retrospective study was performed of outcomes of plastibell circumcision in a community-based circumcision service provided by trained paediatric surgeons. The objective was to assess the complication of slipped plastibell rings and to ascertain the effectiveness of its management. RESULTS A total of 5 patients with a slipped plastibell ring were indentified out of 560 plastibell circumcisions. Three patients presented with acquired phimosis. In two patients early diagnosis and management prevented any further complications and a second operation was avoided. CONCLUSIONS Plastibell circumcision in the community is safe and effective. Detection of minor bleeding due to a slipped ring is important. Early management can avoid the risk of acquired phimosis due to cicatrix formation and can save parents of undue anxiety.
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Haider N, Rahim M, Khan M, Ahmed F, Paul S, Rahman M, Luby S, Mikolon A. Serological evidence of Hepatitis E Virus in pigs in Bangladesh. Int J Infect Dis 2012. [DOI: 10.1016/j.ijid.2012.05.644] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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35
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Dilsizian V, Zynda TK, Petrov A, Ohshima S, Tahara N, Haider N, Donohue A, Aras O, Femia FJ, Hillier SM, Joyal JL, Wong ND, Coleman T, Babich JW, Narula J. Molecular Imaging of Human ACE-1 Expression in Transgenic Rats. JACC Cardiovasc Imaging 2012; 5:409-18. [DOI: 10.1016/j.jcmg.2011.10.008] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2011] [Accepted: 10/03/2011] [Indexed: 11/30/2022]
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Haider N, Nabulsi I. Molecular characterization of Syrian date palm cultivars using plasmid-like DNA markers. Genetika 2012; 48:270-274. [PMID: 22568006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Date palm (Phoenix dactylifera L.) is one of the most important domesticated fruit trees in the Near East and North African countries. This tree has been, for several decades, in serious threat of being completely destroyed by the "Bayoud" disease caused by Fusarium oxysporum f. sp. albedinis. In this study, 18 Syrian date palm cultivars and four male trees were analyzed according to the identity of mitochondrial plasmid-like DNAs. A PCR strategy that employs plasmid-like DNAs-specific primer pair was used. These primers amplify a product of either 373-bp or 265-bp that corresponds to the S-(Bayoud-susceptible) or the R-plasmid (Bayoud-resistant), respectively. Generated data revealed that only six cultivars ('Medjool', 'Ashrasi', 'Gish Rabi', 'Khineze', and yellow- and red-'Kabkab') have the S-plasmid, suggesting their susceptibility to the fusariosis, while the remaining 12 cultivars and the four male trees contain the R-plasmid, suggesting their resistance to the fusariosis. The PCR process applied here has been proved efficient for the rapid screening for the presence of the S and R DNAs in Syrian date palm. PCR markers developed in this study could be useful for the screening of date palm lines growing in the field. The availability of such diagnostic tool for plasmid characterization in date palm would also be of great importance in establishing propagation and breeding programs of date palm in Syria.
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Affiliation(s)
- N Haider
- Department of Molecular Biology and Biotechnology, AECS, P.O. Box 6091, Damascus, Syria.
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Affiliation(s)
- N. Haider
- Minimally Invasive Spine Institute, Washington DC, United States
| | - K. Ali
- Minimally Invasive Spine Institute, Washington DC, United States
| | - T. Raley
- Minimally Invasive Spine Institute, Washington DC, United States
| | - J. Weiners
- Minimally Invasive Spine Institute, Washington DC, United States
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39
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O'Callaghan A, Colgan MP, McGuigan C, Smyth F, Haider N, O'Neill S, Moore D, Madhavan P. A critical evaluation of HIPE data. Ir Med J 2012; 105:21-23. [PMID: 22397209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Resource allocation and planning of future services is dependent on current volumes, making it imperative that procedural data is accurately recorded. We sought to evaluate the effectiveness of the information gathered by the Hospital Inpatient Enquiry (HIPE) system in recording such activity. Five index vascular procedures (open/endovascular abdominal aneurysm repair, carotid endarterectomy, lower limb angioplasty/bypass) were chosen to reflect activity. The Economic and Social Research Institute (ESRI), and HIPE databases were interrogated to obtain the regional and hospital specific figures for the years 2005, 2006 and 2009, and then compared with the prospective vascular database in St James's hospital. Data for 2006 (the most recent year available) shows significant discrepancies between the HIPE and vascular database figures for St James's hospital. The HIPE and database figures respectively for; open aneurysm 13/30 (-50%), endovascular aneurysm 39/31 (+25%), carotid 62/48 (+29%), angioplasty 242/111 (+100%) and bypass 24/10 (+100%) These inaccuracies are likely to be magnified on a regional and national level when pooling data.
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Abstract
In diabetes, glycation is a nonenzymatic posttranslational modification resulting from the bonding of a sugar molecule with a protein or lipid followed by oxidation, resulting in the development of advanced glycation end products (AGE). Like glycation, carbamylation is a posttranslational protein modification that is associated with AGE formation. Glycation of extracellular matrix proteins and low-density lipoprotein with subsequent deposition in the vessel wall could contribute to inflammatory response and atheroma formation. It is logical to extrapolate that carbamylation may result in modification of vessel wall proteins similar to glycation, and predispose to atherosclerosis.
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Affiliation(s)
- Dilbahar S Mohar
- Division of Cardiology, University of California-Irvine School of Medicine, Orange, CA 92868-3298, USA.
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O’Brien G, Martin Z, Haider N, Colgan M, O’Neill S, Moore D, Madhavan P. An analysis of vascular surgery in elderly patients to determine whether age affects treatment strategy. Ir J Med Sci 2011; 181:73-6. [DOI: 10.1007/s11845-011-0779-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2011] [Accepted: 10/18/2011] [Indexed: 10/15/2022]
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Haider N, Wilkinson MJ. A set of plastid DNA-specific universal primers for flowering plants. Genetika 2011; 47:1204-1215. [PMID: 22117405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
MatKand rbcL are recommended as the official barcode loci for higher plants but there remains a need for additional universal markers. We generated a series of 84 new universal primers targeting 42 plastid loci that all yielded single amplicons when applied to DNA templates from 19 diverse higher plant families. Marker utility ultimately depends on sequence variability, with rapidly evolving loci being useful for barcoding or biogeographic applications and more conserved loci being better suited to deep phylogeny reconstruction. Whereas excessive size variation is undesirable for many applications, modest size variability caused by indels and the sequence variation frequently associated with indels are highly desirable. We therefore performed a quick screen of the markers for size and sequence variation using pooled DNA templates from 96 taxonomically diverse species. All markers produced little or no size variation (consistent with the presence of minor indels). The seven regions exhibiting most size variation in pooled (rpl23&rpl2.1, 16S, 23S, 4.5S&5S, petB&D, and rpl2, rpoCl and trnK introns) were then amplified for all species individually, confirming the pooled template results. When the most variable loci (introns of trnK and rpoC1) were sequenced for all 96 species, a high level of sequence variation (nucleotide substitutions and indels) was observed among congeneric species groups for both loci. Both markers therefore have potential as supplementary barcode markers.
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Affiliation(s)
- N Haider
- Department of Molecular Biology and Biotechnology, AECS, P.O. Box 6091, Damascus, Syria.
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Narula N, Zaragoza MV, Sengupta PP, Li P, Haider N, Verjans J, Waymire K, Vannan M, Wallace DC. Adenine nucleotide translocase 1 deficiency results in dilated cardiomyopathy with defects in myocardial mechanics, histopathological alterations, and activation of apoptosis. JACC Cardiovasc Imaging 2011; 4:1-10. [PMID: 21232697 DOI: 10.1016/j.jcmg.2010.06.018] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2010] [Revised: 06/15/2010] [Accepted: 06/28/2010] [Indexed: 12/30/2022]
Abstract
OBJECTIVES the aim of this study was to test the hypothesis that chronic mitochondrial energy deficiency causes dilated cardiomyopathy, we characterized the hearts of age-matched young and old adenine nucleotide translocator (ANT)1 mutant and control mice. BACKGROUND ANTs export mitochondrial adenosine triphosphate into the cytosol and have a role in the regulation of the intrinsic apoptosis pathway. Mitochondrial energy deficiency has been hypothesized, on the basis of indirect evidence, to be a factor in the pathophysiology of dilated cardiomyopathies. Ant1 inactivation should limit adenosine triphosphate for contraction and calcium transport, thereby resulting in early cardiac dysfunction with later dilation and heart failure. METHODS we conducted a multiyear study of 73 mutant (Ant1-/-) and 57 control (Ant1+/+) mice, between the ages of 2 and 21 months. Hearts were characterized by cardiac anatomy, echocardiographic imaging with velocity vector analysis, histopathology, and apoptosis assays. RESULTS the Ant1-/- mice developed a distinctive concentric dilated cardiomyopathy, characterized by substantial myocardial hypertrophy and ventricular dilation, with cardiac function declining earlier in age as compared to control mice. Left ventricular circumferential, radial, and rotational mechanics were reduced even in the younger mutants with preserved systolic function. Histopathologic analysis demonstrated increased myocyte hypertrophy, fibrosis, and calcification in the mutant mice as compared with control mice. Furthermore, increased cytoplasmic cytochrome c levels and caspase 3 activation were observed in the mutant mice. CONCLUSIONS our results demonstrate that mitochondrial energy deficiency is sufficient to cause dilated cardiomyopathy, confirming that energy defects are a factor in this disease. Energy deficiency initially leads to early mechanical dysfunction before a decline in left ventricular systolic function. Chronic energy deficiency with age then leads to heart failure. Our results now allow us to use the Ant1-/- mouse model for testing new therapies for ANT1 mutant patients.
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MESH Headings
- Animals
- Apoptosis
- Blotting, Western
- Cardiomegaly/enzymology
- Cardiomegaly/physiopathology
- Cardiomyopathy, Dilated/enzymology
- Cardiomyopathy, Dilated/genetics
- Cardiomyopathy, Dilated/pathology
- Cardiomyopathy, Dilated/physiopathology
- Disease Models, Animal
- Echocardiography
- Female
- Histocytochemistry
- Male
- Mice
- Mice, Mutant Strains
- Mitochondria, Heart/metabolism
- Mitochondrial ADP, ATP Translocases/deficiency
- Mitochondrial ADP, ATP Translocases/genetics
- Mutation
- Myocardial Contraction
- Myocardium/pathology
- Stroke Volume
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Affiliation(s)
- Nupoor Narula
- Center for Mitochondrial and Molecular Medicine and Genetics (MAMMAG), University of California, Irvine, California, USA
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Khan S, Epstein J, Olival K, Hassan M, Hossain M, Rahman K, Elahi M, Mamun M, Haider N, Yasin G, Desmond J. Hematology and serum chemistry reference values of stray dogs in Bangladesh. Open Vet J 2011; 1:13-20. [PMID: 26623274 PMCID: PMC4655752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2010] [Accepted: 12/08/2010] [Indexed: 11/20/2022] Open
Abstract
Hematology and serum chemistry values were obtained from 28 male and 22 female stray dogs in Chittagong Metropolitan area, Bangladesh. The goal of the study was to establish reference value for hematology and serum chemistry for these semi wild animals in relation to age, sex, reproductive stage and body condition. No significant differences were found for mean values of hemoglobin, packed cell volume, mean corpuscular hemoglobin concentration, white blood cell, differential leukocyte count, total protein, albumin, glucose, cholesterol, phosphorus and potassium among or between sexes, ages, reproductive states or body conditions. Significant differences were noted for erythrocyte sedimentation rate (p<0.02) between sexes. Among different age groups significant differences were found for total red blood cell count (p<0.001). Different body conditions have significant differences in red blood cell count, mean corpuscular volume and mean corpuscular hemoglobin (p<0.001). Pregnant and non-pregnant females differed significantly in their red blood cell count, mean corpuscular volume and mean corpuscular hemoglobin (p<0.001).
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Affiliation(s)
- S.A. Khan
- Chittagong Veterinary and Animal Sciences University, Chittagong, Bangladesh
- EcoHealth Alliance (formerly Wildlife Trust), New York, USA
| | - J.H. Epstein
- EcoHealth Alliance (formerly Wildlife Trust), New York, USA
| | - K.J. Olival
- EcoHealth Alliance (formerly Wildlife Trust), New York, USA
| | - M.M. Hassan
- Chittagong Veterinary and Animal Sciences University, Chittagong, Bangladesh
| | - M.B. Hossain
- Chittagong Veterinary and Animal Sciences University, Chittagong, Bangladesh
| | - K.B.M.A. Rahman
- Food and Agricultural Organization- AI Technical unit, DLS, Bangladesh
| | - M.F. Elahi
- Chittagong Veterinary and Animal Sciences University, Chittagong, Bangladesh
| | - M.A. Mamun
- Chittagong Veterinary and Animal Sciences University, Chittagong, Bangladesh
| | - N. Haider
- International Centre for Diarrhoeal Disease Research, Dhaka, Bangladesh
| | - G. Yasin
- Chittagong Veterinary and Animal Sciences University, Chittagong, Bangladesh
| | - J. Desmond
- EcoHealth Alliance (formerly Wildlife Trust), New York, USA
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47
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MirAli N, Al-Odat M, Haider N, Nabulsi I. The genus Crataegus L.: an ecological and molecular study. Genetika 2011; 47:32-40. [PMID: 21443158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
This study aimed at the indentification of the species and genotypes of the genus Crataegus in Syria and determination of the genetic relationships among them based on the analysis of genomic and chloroplast DNA (cpDNA) using ISSRs and CAPS techniques. Morphological characterization carried out on 49 Crataegus samples collected from different geographical regions of Syria revealed four Crataegus species: C. monogyna, C. sinaica, C. aronia and C. azarolus. In the dendrogram constructed for those samples based on ISSRs (20 primers), all samples that belong to C. monogyna were clustered in one cluster. Samples of the other three species were overlaped in another cluster. Two samples of these were the most distant from all other samples in the dendrogram and were suggested to represent hybrid species or subspecies. When CAPS technique was applied on four Crataegus samples that represent the four suggested species using 22 cpDNA regions and 90 endonucleases, no polymorphism was detected neither in amplification products sizes nor in restriction profiles. The inability of detection of variation in cpDNA among species suggested can be attributed to the low level of evolution of the cpDNA in the genus, and to the possibility that some of these species are either subspecies or hybrids since the cpDNA is inherited through one parent only.
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Affiliation(s)
- N MirAli
- Department of Molecular Biology and Biotechnology AECS, Damascus, Syria
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Khan S, No author NA, No author NA, Epstein J, Olival K, Hassan M, Hossain M, Rahman K, Elahi M, Mamun M, Haider N, Desmond G. Hematology and serum chemistry reference values of stray dogs in Bangladesh. Open Vet J 2011. [DOI: 10.5455/ovj.2011.v1.i0.p13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Hematology and serum chemistry values were obtained from 28 male and 22 female stray dogs in Chittagong Metropolitan area, Bangladesh. The goal of the study was to establish reference value for hematology and serum chemistry for these semi wild animals in relation to age, sex, reproductive stage and body condition. No significant differences were found for mean values of hemoglobin, packed cell volume, mean corpuscular hemoglobin concentration, white blood cell, differential leukocyte count, total protein, albumin, glucose, cholesterol, phosphorus and potassium among or between sexes, ages, reproductive states or body conditions. Significant differences were noted for erythrocyte sedimentation rate (p<0.02) between sexes. Among different age groups significant differences were found for total red blood cell count (p<0.001). Different body conditions have significant differences in red blood cell count, mean corpuscular volume and mean corpuscular hemoglobin (p<0.001). Pregnant and non-pregnant females differed significantly in their red blood cell count, mean corpuscular volume and mean corpuscular hemoglobin (p<0.001).
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Haider N, Nabulsi I, Kamary Y. Identification of Orchidaceae species from Northern West of Syria based on chloroplast DNA. Genetika 2010; 46:1067-1078. [PMID: 20873203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
The plant family Orchidaceae has a great economic value (ornamental and medical uses, beside the aromatic features). Traditionally, identification of orchid species has relied heavily on morphological features. These features, however, are either not variable enough between species or too plastic to be used for identification at the species level. DNA-based markers could be the alternative strategy towards an accurate and robust identification of those species. Since the chloroplast DNA has a lower level of evolution compared to the nuclear genome, an attempt was made in this study to investigate polymorphism in the chloroplast DNA among orchid species distributed in North-West region of Syria using Cleaved Amplified Polymorphic Sequence (CAPS) technique for developing markers for the diagnosis of targeted species. CAPS analysis was carried out on 34 orchid samples that represent all species observed in the region. Universal primers were used to amplify targeted chloroplast regions. Generated PCR products were digested with various restriction enzymes. CAPS results revealed high polymorphism among species examined. This polymorphism was suffiecient for the diagnosis of all of those species apart from five species (Ophrys fuciflora (one sample), Oph. bornmuelleri, Ophrys sp., Oph. scolopax and Oph. argolica). Availability of such species-specific markers would ensure more authentic identification of orchid species compared to morphological characters and can be regarded as a valuable tool to guide in conservation programs of orchid species in Syria. CAPS data generated were converted to an identification key for orchid species studied.
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Affiliation(s)
- N Haider
- Department of Molecular Biology and Biotechnology, AECS, P.O. Box 6091, Damascus, Syria.
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